Hand-pump.



A. G. STIEFEL.

HAND PUMP.

APPLICATION FILED AUG.21, 1913i Patented Aug. 25,1914

INVENTOR /74l///v C. 57/5/75 ATTORNEYS THE NORRIS PETERS CO4. PHOTO-LITHQ, WASHINGTON, D C 4 UNITED STATES ra'rnnr orrron.

ALVIN CHARLES STIEFIEL, OF I-IOUMA, LOUISIANA.

HAND-PUMP.

Application filed August 21, 1913.

To all whom it may concern Be it known that I, ALVIN C. S'rInrnL, a citizen of the United States, and a resident of Houma, in the parish of Terrebonne and State of Louisiana, have invented a new and useful Improvement in Hand-Pumps, of which the following is a specification.

My invention is an improvement in hand pumps, and has for its object to provide a pump of the character specified, for use in transferring liquid from one receptacle to another, or for bailing out boats and the like, wherein a light, compact and easily transported device is provided, capable of being held in one hand and operated by the other, or in any other suitable manner.

In the drawings :Figure 1 is a side view of the improved pump with parts in section, Fig. 2 is a longitudinal section, Fig. 3 is a section on the line 33 of Fig. 1, Fig. e is a section on the line %t4; of Fig. 1, looking in the direction of the arrows, Fig. 5 isa top plan view of the lower valve and its support, and Fig. 6 is a transverse vertical sec tion of the lower end of the pump and the lower valve.

The present embodiment of the invention comprises a casing 1 of cylindrical form, having its lower end open as indicated, and the casing is provided with an annular series oat openings near the open end, the said openings being arranged in a sleeve, and being rectangular in form in the present instance. The opposite or upper end of the casing 1 is flaring, as indicated at 4, and the said flaring portion is provided with an opening 5, and a delivery elbow 6 is connected to the flaring portion of the casing at the opening. The outlet 7 of the delivery elbow is arranged to extend toward the closed end as shown, and a cylindrical plunger rod 8 is arranged within the casing. The plunger rod 8 is provided at its upper end with a cross head or handle 9, and the lower end of the said plunger rod is beveled on each side to a point, as shown at 10. The plunger rod 8 is of a length to extend from above the upper or flaring end of the casing, to near the bottom thereof, and the plunger 0r piston is connected with the lower end of the said plunger rod. The piston is composed of a ring 11 of wire or the like, of an external. diameter to fit within the casing 1. Arms 12 and 13 are provided for connecting the ring with the plunger rod 8. The arm 12 is in tegral with the ring, the ring being formed Specification of L Patented Aug. an

Serial No. 785,529.

etters Patent. 1914.

by bending a wire or rod to tormthe ring, and one of the ends of the wire orrod is bent upwardly to form the arm 12. The said arms 12 and 13 are bent inwardly toward the plunger rod, a short distance above the ring, and the saidarms are secured to the plunger rod, by means of staples i l or the like. Preferably the plunger rod, which in the present instance, is of wood, is grooved lcngitudinallv. to receive the portions of the arms 12 and 13 that lap upon the said plunger rod. The arm 13 is shaped like the arm 12, and at its lower end the said arm is bent angularly diametrically or the ring and of the casing l, to form a lug l5 lying above the ring 11.

A valve is supported by the lug-1L the said valve consisting of two semi-circular flaps or leaves 16 and 17. Une of the leaves 16 is provided with a pair of alined spaced bearings 18; the leaf 17 is provided with a single bearingv 19, and the bearings 18 and 19 engage the'lug 15, to hinge the sections of the valve directly above the ring. Normall the edges of the sections 1617 of the valve rest upon the ring and are supported thereby in horizontal position and in the same plane. A sleeve 20 is arranged in the casing at the lower end thereof, and the said sleeve supports the foot valve. The sleeve 20 is provided with an annular series of openings 21, and the upper end of the sleeve is cut away from each side toward the center. A rod or pivot pin 22 is arranged transversely of the sleeve at the center of the said cutaway portion, for supporting a sectional valve consisting of flaps 23 and 24:, and the said flaps are hinged to the rod or pivot pin. The flaps are semi-circular, and the flap 23 is provided at the center of its straight edge with a single bearing 25, for engaging the rod, while the flap 24. is provided with a pair of alined spaced bearings 26 at its straight edge engaging the rod on opposite sides of the bearing 25. in terming the sleeve 20, the side wall is cut-away from opposite sides inwardly and downwardly, the cuts meeting on a diameter of the sleeve, and the pin 22 is arranged at the deepest portion of the cut, that is, at the diameter where the cuts meet.

The flaps or sections of the valve rest upon the inclined upper end of the sleeve, so that both flaps incline upwardly toward their free edges. A portion of the material of the sleeve at each end of the pivot pin is left, as indicated at 27, to form a stop for preventing disengagement of the pivot pin and also for limiting the upward movement of the flaps of the valve. The free ends of the lugs 27 are bent inwardly as shown in Fig. 5 to over-lie the bearings 26. When the flaps are raised by the in-rushingwater they will strike the lugs 27 before they reach a vertical position, thus insuring the proper closing of the flaps on the downward movement of the plunger. The upper ends of the rods 12 and 18 are as before stated, arranged within grooves on the plunger and the extremities of the said rods are bent laterally inward and driven into the material of the plunger as indicated at 28 in Fig. 1.

In operation, the lower end of the casing is introduced into the liquid to be transferred and by means of the handle 9, the plunger rod and plunger are reciprocated. On the up stroke, the valves 16 and 17 hold their position in contact with the ring, and the liquid is drawn into the lower end of the casing, lifting the flaps 23-24- of the foot valve. On the down stroke, the liquid in the casing is prevented from passing out by the closing of the said valve sections, and the sections 16 and 17 of the plungerivalve are lifted, and the liquid flows above the plunger or piston. A continuation of the reciprocating movement of theplunger rod will finally fill the casing with liquid, until it reaches the flaring portion 4 of thecasing and flows out through the discharge elbow 6. On account of the large relative diameter of the plunger rod, there is but little space for the liquid in the upper part of the casing, and a few strokes of the plunger will cause the liquid to flow out atthe discharge outlet.

The pump as a whole, is light, compact, cheaply constructed, and may be easily transported from place to place, or may be stored in small space.

The pump is especially adapted for marine work, on account of its lightweight.

I claim 1. A hand operated pump, comprising a cylindrical casing having one end flaring and provided with a discharge spout at the flaring portion, a plunger rod within the casing, said rod extending out of the casing at the flaring end and having a handle, arms connected with the opposite end of the rod from the handle and extending longitudinally beyond said end, a ring rigidly connected with one arm and arranged coaxial with the plunger, a pivot pin rigid with the other arm and lying diametrically of the ring on the inner side thereof, a sectional valve consisting of approximately semicircular flaps hinged to the pivot pin and normally lying on the ring, a sleeve engaging the end of the casing remote from the flaring end and extending beyond the cas- 6:; ing, and having openings in its side wall, the'upper end of the sleeve being cut away from each side inwardly and downwardly to the center of the said sleeve, a pivot pin arranged transversely of the sleeve at the junction of the said cut-away portion, a sec tional valve consisting of approximately semi-circular flaps, said flaps being hinged to the pivot pin and normally resting on the cutaway edge of the sleeve, and means in connection with the sleeve for limiting the lifting movement of the said flaps.

A pump comprising a tubular casing provided near one end with a lateral outlet, a plunger rod within the casing and extending beyond the casing at the end adj cent to the lateral outlet, arms connected with the opposite end of the rod from the outlet and extending longitudinally beyond the said end, a ring rigidly connected with one arm, a pivot pin rigid with the other arm and extending diametrically of the ring onthe inner side thereof, a sectional valve consisting of a plurality of flaps, ecah flap being hinged to the pivot pin and normally lying on the ring, a pivot pin held transversely'o-f the casing at the end remote from the outlet, a sectional valve consisting of flaps hinged to the pivot pin, and a support for the last-named pivot pin detachably engaged with the casing and having means for holding the flaps in inclined position and having other means for limiting the lifting movement of the flaps. I

ALVIN CHARLES STIEFEL.

W itnesses F. X. Boone, W. Anonn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatent's, Washington, D. 6. 

